Add top soil or organic peat moss to the hole when you plant. You can also add in composted cow manure to enrich the soil around the root ball. Trimming these plants is rarely necessary, though you may want to trim now and then for size or shape. Water regularly but allow time for these shrubs to dry out a bit between waterings. Although carissa is considered drought-tolerant, getting watered on a regular, well-timed basis will keep this shrub pretty and healthy. Fertilize 3 times a year - spring, summer and autumn - with a top quality granular fertilizer.
- Light Needs: Full sun to partial Sun
- Watering Needs: Drought Tolerant, Average Water
Natal plum 'Emerald Blank' is an attractive, dwarf cultivar of Carissa macrocarpa which is a spiny shrub native to South Africa. This tropical, evergreen plant has thick, leathery leaves which are oval to roundish often with a spine at the tip. There are also soft, Y-shaped thorns on the stems and branches. The leaves are glossy; bright dark green on the upper surface, paler below and opposite on the stem.